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Jackass BFSSFG poseur tarck bicyclist of the day

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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

Jackass BFSSFG poseur tarck bicyclist of the day

Old 06-16-09, 10:47 PM
  #11826  
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The hubs and crank are a bit out of place, but other than that it looks like any other roadie's last season trainer turned singlespeed.
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Old 06-16-09, 11:09 PM
  #11827  
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i guess its onlyyyy a 1500 road bike now its tarck.
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Old 06-16-09, 11:12 PM
  #11828  
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I always thought tarck meant a track bike that isn't ridden on a track.

Isn't a road bike not a track bike?
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Old 06-17-09, 12:29 AM
  #11829  
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That is not tarck. Tarck is track bikes inspired by anodized and color matched BMX and MTB.
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Old 06-17-09, 12:30 AM
  #11830  
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Originally Posted by icelemmings View Post
I came across a gem today in Greenwich Village—does anybody have a photograph of this wonder on hand? I'm sure one has been taken.
Cinelli track frame (Vigorelli if I am not mistaken), platform pedals without retention, riser bars, aerospoke front wheel. Rider was a white guy, mid to late 40s.
This type of scenario is hardly mentionable here in NYC this summer...
Everyone is a messenger on a $1200 bike wearing flip flops and a bag with a 70's seat belt for a strap.
Im the dude trying not to scratch his Kilo TT.... he he!
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Old 06-17-09, 12:31 AM
  #11831  
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Is that a Chain tensioner with a fixed gear cog on the back???

I wonder how well that works. I assume there is no braking with the drive-train going on.
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Old 06-17-09, 07:09 AM
  #11832  
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I can't see any reason he wouldn't be able to brake using the drivetrain with that setup.
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Old 06-17-09, 08:50 AM
  #11833  
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Originally Posted by bratton View Post
You're a jackass.
go **** yourself.
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Old 06-17-09, 09:00 AM
  #11834  
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fears alleviated dsh, thx.
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Old 06-17-09, 09:44 AM
  #11835  
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By that logic you shouldn't worry about a tensioner at all. When pedaling forward there will be a little slack on the bottom part of the chain, which isn't doing anything at the time anyway.
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Old 06-17-09, 10:19 AM
  #11836  
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Originally Posted by the_don View Post
fears alleviated dsh, thx.
no prob man
Originally Posted by dtret10 View Post
By that logic you shouldn't worry about a tensioner at all. When pedaling forward there will be a little slack on the bottom part of the chain, which isn't doing anything at the time anyway.
A lot of people run much slacker chains than what would be on the top part of the chain if you torqued backwards.
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Old 06-17-09, 12:01 PM
  #11837  
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You guys have got to be joking about using an arm type tensioner on a fixie.... search the forum.
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Old 06-17-09, 12:33 PM
  #11838  
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Originally Posted by oldfolksmashers View Post
You guys have got to be joking about using an arm type tensioner on a fixie.... search the forum.
Oh I've heard everything people have to say regarding any type of chain tensioner (other than the axle-pull type) on a fixed gear.

None of them provide very compelling arguments, though. It's always just "dood if you put a little back pressure on that or try to skid, it's gonna explode in a million pieces", with no logical explanation as to why it'd happen.

The one on the previous page, for example? If that tensioner arm is on a spring-loaded pivot, you could pedal backwards all day and the tensioner wouldn't break. It would simply move out of the way.

*shrug*

Not saying a tensioner on fixed gear bikes is ok, but the arguments as to why they're a bad idea are nonexistent. They're always just made as a statement of fact, without explaining any of the underlying principles.

I get the feeling a lot of people don't know why tensioners on a fg are a bad idea, they just heard it from someone else and are repeating it.

Last edited by dsh; 06-17-09 at 12:37 PM.
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Old 06-17-09, 02:23 PM
  #11839  
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Originally Posted by lattanzio View Post
go **** yourself.
no u
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Old 06-17-09, 02:44 PM
  #11840  
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Originally Posted by dsh View Post
Oh I've heard everything people have to say regarding any type of chain tensioner (other than the axle-pull type) on a fixed gear.

None of them provide very compelling arguments, though. It's always just "dood if you put a little back pressure on that or try to skid, it's gonna explode in a million pieces", with no logical explanation as to why it'd happen.

The one on the previous page, for example? If that tensioner arm is on a spring-loaded pivot, you could pedal backwards all day and the tensioner wouldn't break. It would simply move out of the way.

*shrug*

Not saying a tensioner on fixed gear bikes is ok, but the arguments as to why they're a bad idea are nonexistent. They're always just made as a statement of fact, without explaining any of the underlying principles.

I get the feeling a lot of people don't know why tensioners on a fg are a bad idea, they just heard it from someone else and are repeating it.
I run an arm type tensioner on my single speed. Using it fixed would not work because it wouldn't function the moment you stopped pulling the chain forward. You'd instantly develop a ton of slack putting you at high risk for dropping your chain. In essence, in any scenario other than pulling the chain forward it would be like not running a tensioner at all, which given the amount of slack those things tend to pick up would be unsafe.
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Old 06-17-09, 03:50 PM
  #11841  
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I definitely agree that the slack developed on the "top" run of chain between the ring and cog would be the issue, much moreso than the tensioner exploding in a fiery inferno and sending shrapnel in all directions and many times the speed of sound.

What started the whole thing was the bike on the last page, though:
http://www.bikeforums.net/showpost.p...ostcount=11821

That tensioner is taking up so little slack, that even without it the chain would only be half a link or so beyond acceptable. Given a nice straight chainline and not skidding while going over railroad tracks or something, I bet that bike could drivetrain-brake just fine.

I wish someone would build a FG with lever arm spring-pivot chain tensioners on the top AND bottom chain runs. It would blow people's minds.
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Old 06-17-09, 08:53 PM
  #11842  
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I think it looks more like a freewheel cog. I can see a black lockring (maybe) and then there's a gap right underneath the teeth which looks like that of a freewheel's.
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Old 06-17-09, 09:05 PM
  #11843  
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Originally Posted by dsh View Post
I wish someone would build a FG with lever arm spring-pivot chain tensioners on the top AND bottom chain runs. It would blow people's minds.
Ghost ring?
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Old 06-17-09, 09:17 PM
  #11844  
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Originally Posted by geeknerd99 View Post
Ghost ring?
Same principle I guess, except my dual arm-tensioners wouldn't fly off the bike every time you hit a pebble at more than 15 mph.
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Old 06-17-09, 09:20 PM
  #11845  
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Originally Posted by Promo View Post
i guess its onlyyyy a 1500 road bike now its tarck.
Originally Posted by dsh View Post
I always thought tarck meant a track bike that isn't ridden on a track.

Isn't a road bike not a track bike?
Originally Posted by blickblocks View Post
That is not tarck. Tarck is track bikes inspired by anodized and color matched BMX and MTB.
huh....you learn something very day. i thought it was road bike turned into track bike/SS/FG...
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Old 06-17-09, 09:24 PM
  #11846  
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I think we need a glossary.
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Old 06-18-09, 12:37 AM
  #11847  
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Ghost ring with bash guards bolted on maybe.

That's not a whole lot of slack, but in taking up the slack you can see the chain is still deflected by much more than the height of a chaintooth. Which means there's enough slack to derail given half a chance.
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Old 06-18-09, 01:31 AM
  #11848  
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for your review,

http://vimeo.com/5193009?pg=embed&sec=&hd=1
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Old 06-18-09, 08:48 AM
  #11849  
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Originally Posted by adriano View Post
+1 for cardigans

-1 for the haircut

+1 for being, like, pretty good at riding bikes it looks like

-1 for crashing and totaling his bike because he doesn't ride with a brake


Feel free to add to or modify this assessment.
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Old 06-18-09, 08:49 AM
  #11850  
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HAHA! yeah! That rev X seems to handling the punishment just fine! So many people claim they will explode, well Spiniergy addressed that problem with the redesigned hub!

They do look sweet too.
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